であったとしても
(De a ta toshite mo)
even if it were / even assuming that (past hypothetical).
Connection rules
- +Noun / na-adj + であったとしても; plain past (V-た) + としても.
- +Past hypothetical / counterfactual concession.
- +Formal / reflective register.
Examples
1.
それが本当であったとしても、驚かない。

Sore ga hontou de a ta toshite mo, odoroka nai.
Even if that were true, I wouldn't be surprised.
「even if it were / even assuming that (past hypothetical)」
2.
彼が犯人であったとしても、信じられない。

Kare ga hannin de a ta toshite mo, shinji rare nai.
Even if he were the culprit, I couldn't believe it.
「even if it were / even assuming that (past hypothetical)」
Practice
Even if it were a failure, the experience gained there is a great asset.
仮にそれが___、そこで得た経験は大きな財産になる。
Romaji also accepted